I think the concept is interesting but needs some tweaking. The main issue with any core downtown is space. There simply isn't any available, for anyone. The space that is available is extremely costly so we need to think outside the box. Bike paths on the ground aren't the only option.

Go up. Elevated bike paths, much like the Vancouver Skyrail, are an option. http://www.railway-technology.com/projects/vancouver/vancouv...

- The elevated structure would only be for cyclists - You could literally ride above all the downtown traffic - Dedicated lanes so you don't get road rage